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author | 2012-10-10 21:28:25 -0400 | |
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committer | 2012-10-12 13:35:07 -0400 | |
commit | a74fb73c12398b250fdc5e333a11e15a9e3a84fc (patch) | |
tree | 2bec2f6e20320f5a4bc01d1e19d7190842ef1c37 /net/Makefile | |
parent | make sure that kernel_thread() callbacks call do_exit() themselves (diff) | |
download | linux-dev-a74fb73c12398b250fdc5e333a11e15a9e3a84fc.tar.xz linux-dev-a74fb73c12398b250fdc5e333a11e15a9e3a84fc.zip |
infrastructure for saner ret_from_kernel_thread semantics
* allow kernel_execve() leave the actual return to userland to
caller (selected by CONFIG_GENERIC_KERNEL_EXECVE). Callers
updated accordingly.
* architecture that does select GENERIC_KERNEL_EXECVE in its
Kconfig should have its ret_from_kernel_thread() do this:
call schedule_tail
call the callback left for it by copy_thread(); if it ever
returns, that's because it has just done successful kernel_execve()
jump to return from syscall
IOW, its only difference from ret_from_fork() is that it does call the
callback.
* such an architecture should also get rid of ret_from_kernel_execve()
and __ARCH_WANT_KERNEL_EXECVE
This is the last part of infrastructure patches in that area - from
that point on work on different architectures can live independently.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/Makefile')
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